Inkonzo enye yokumisa i-SON8 TPS7A8101QDRBRQ1 NgeeChips zoMbane ze-IC zoqobo kunye neNtsha

Inkonzo enye yokumisa i-SON8 TPS7A8101QDRBRQ1 ene-IC yoqobo kunye neNtsha yeeChips zoMfanekiso oMfaniswayo

inkcazelo emfutshane:

I-LDO, okanye i-low dropout regulator, isilawuli esisezantsi sokuyeka ukuphuma usebenzisa i-transistor okanye ityhubhu yempembelelo yasendle (FET) esebenza kwindawo yayo yokuhlutha ukukhupha amandla ombane agqithileyo kumbane osetyenziswayo wokufaka umbane ukuvelisa amandla ombane amiselweyo.

Izinto ezine eziphambili ziyi-Dropout, Ingxolo, i-Power Supply Rejection Ratio (PSRR), kunye ne-Quiscent Current Iq.

Amacandelo aphambili: isiphaluka sokuqala, iyunithi ye-bias eqhubekayo yangoku, isiphaluka esivumelayo, i-elementi yokulungelelanisa, umthombo wereferensi, i-amplifier yephutha, inethiwekhi ye-resistor yempendulo kunye nesekethe yokukhusela, njl.

Thumela i-imeyile kuthi Khuphela i-Datesheet

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu zeMveliso

UHLOBO	INKCAZO
Udidi	IiSekethe eziDityanisiweyo (ICs) PMIC I-Voltage Regulators - Linear
Mfr	Texas Instruments
Uthotho	Iimoto, AEC-Q100
Iphakheji	Iteyiphu & neReel (TR) Sika iTape (CT) Digi-Reel®
SPQ	3000 T&R
Ubume beMveliso	Iyasebenza
Uqwalaselo Lwemveliso	Okuhle
Uhlobo Lwemveliso	Iyahlengahlengiswa
Inani labaLawuli	1
I-Voltage-Input (Ubukhulu)	6.5V
Voltage-Imveliso (Min/Fixed)	0.8V
Voltage-Imveliso (Ubukhulu)	6V
Ukuyeka umbane (Ubukhulu)	0.5V @ 1A
Okwangoku -Isiphumo	1A
Okwangoku - Ipholile (Iq)	100µA
Okwangoku - Ubonelelo (Ubukhulu)	350µA
PSRR	48dB ~ 38dB (100Hz ~ 1MHz)
Iimpawu zokulawula	Vulela
Iimpawu zoKhuselo	Ngaphezulu kwangoku, ngaphezulu koBubushushu, ukuBuyisa iPolarity, ngaphantsi kweVoltage Lockout (UVLO)
Ubushushu bokusebenza	-40°C ~ 125°C (TJ)
Uhlobo lokuNqamisa	INtaba engaphezulu
Ipakethe / Ityala	I-8-VDFN eveziweyo yePad
Supplier Device Package	NYANA-8 (3x3)
Inombolo yeMveliso esisiseko	TPS7A8101

Izinto ezine eziphambili ziyi-Dropout, Ingxolo, i-Power Supply Rejection Ratio (PSRR), kunye ne-Quiscent Current Iq.

Umgaqo wokuSebenza

Isekethe ye-LDO esisiseko iquka uthotho lwe-VT yokulawula, iisampulu ezixhathisa i-R1 kunye ne-R2, kunye neamplifier yokuthelekisa A.

Inkqubo inikwe amandla, ukuba i-pin yokuvumela ikwinqanaba eliphezulu, isekethe iqala, isekethe yomthombo wangoku eqhubekayo ibonelela ngokungathathi hlangothi kuyo yonke isekethe, i-voltage yomthombo wereferensi isekwe ngokukhawuleza, kwaye i-voltage yegalelo engalawulwayo isetyenziswa njengombane. Ubonelelo lwamandla, umbane wereferensi usetyenziswa njengenqanaba lokufaka umbane ongalunganga weamplifier yempazamo, inethiwekhi yengxelo echasayo yahlula umbane ophumayo kwaye ifumana amandla ombane wengxelo, lo mbane wengxelo ufaka igalelo kwisiphelo sendlela enye yesithelekisi sempazamo, kunye ne-negative Le voltage yempendulo igalelo kwicala le-isotropic le-comparator yempazamo kwaye ithelekiswa ne-voltage yereferensi engalunganga.Umahluko phakathi kwee-voltages ezimbini ukhuliswe yi-amplifier yephutha ukulawula ngokuthe ngqo isango lesici sokulungelelanisa amandla, kwaye imveliso ye-LDO ilawulwa ngokutshintsha imeko yokuqhubela umbhobho wokulungelelanisa, oko kukuthi i-Vout = (R1 + R2) / R2 × Vref

Olona lawulo lomgca wokuphuma olusezantsi lukwanayo neminye imisebenzi efana nokukhuselwa kombane omfutshane, ukuvalwa kwe-overvoltage, ukuvalwa kwe-thermal, ukukhuselwa kokubuyela umva, njl.

Izinto eziluncedo, izinto ezingeloncedo, kunye nesimo sangoku

I-Low Dropout Voltage (i-LDO) i-linear regulators inexabiso eliphantsi, ingxolo ephantsi, i-low quiescent current, amacandelo ambalwa angaphandle, ngokuqhelekileyo i-capacitor enye okanye ezimbini ze-bypass, kwaye zinesandi esiphantsi kakhulu kunye ne-Power Supply Rejection Ratio (PSRR).I-LDO yiNkqubo encinci kwi-Chip (i-SoC) ene-self-consumption ephantsi kakhulu.Ingasetyenziselwa ulawulo oluphambili lwangoku kwaye ineesekethe ezidibeneyo ze-hardware ezifana ne-MOSFETs ephantsi kakhulu kwi-line-resistance, i-Schottky diode, i-resistors yesampuli, kunye nezahluli zombane, kunye nokukhuselwa kwangoku, ukukhuselwa kobushushu obungaphezulu, Imithombo yereferensi echanekileyo, i-amplifiers umahluko, abalibazisi, njl. njl .Ii-LDO ezininzi zifuna i-capacitor enye kuphela kwigalelo kunye nenye kwimveliso yokusebenza okuzinzileyo.

Ii-LDO ezintsha zinokufikelela ezi nkcukacha zilandelayo: ingxolo yemveliso ye-30µV, i-PSRR ye-60dB, i-quent current ye-6µA, kunye nokuhla kwamandla ombane we-100mV kuphela.Esona sizathu siphambili sale ntsebenzo iphuculweyo ye-LDO yabalawuli bemigca ye-LDO kukuba umlawuli osetyenzisiweyo yi-P-channel MOSFET, eqhutywa yi-voltage kwaye ayifuni okwangoku, ukunciphisa okwangoku okusetyenziswe sisixhobo ngokwaso kunye nokuhla kwamandla ombane kuwo wonke.Ukuwisa kuphantse kulingane nemveliso yemveliso yangoku kunye nokumelana nokumelana.Ukuhla kwamandla ombane kwi-MOSFET kuphantsi kakhulu ngenxa yokunganyangeki kwayo.Abalawuli abaqhelekileyo abasebenzisa i-PNP transistors.Kwiisekethe ezine-PNP transistors, ukuhla kwe-voltage phakathi kwegalelo kunye nemveliso akufanele kube phantsi kakhulu ukuthintela i-PNP transistor ukuba ingene kwi-saturation kunye nokunciphisa amandla okuphuma.

Ngaphambili: ISemicon Original Iisekethe ezidityanisiweyo n123l1 Inkonzo yoluhlu lweBOM kwiStokhwe TPS7A5201QRGRRQ1

Okulandelayo: Umboneleli weSekethe eDityanisiweyo yoMbane oMtsha kunye neNqanaba kwiNkonzo yeBom yesitokhwe TPS22965TDSGRQ1

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